The listings include lithium‑based rechargeable batteries and nickel‑metal hydride (AAA NiMH) rechargeable cells.
The rechargeable packs in the results list voltages of 7.2 V and 3.6 V.
Results include small zinc‑air hearing‑aid sizes (size 312 and size 13), AAA NiMH rechargeable cells (2‑cell AAA packs), and a lithium battery pack described as a non‑universal lithium/lithium‑ion type.
The listings state single‑use hearing‑aid batteries can remain fresh for up to 4 years in storage.
Listings note certified child‑resistant packaging and tabs designed for easier handling (long/colored or wider tabs).
